In The Disappearing Spoon, science writer Sam Kean unlocked the mysteries of the periodic table; here he explores the wonders of the genetic building blocks of life, DNA. There are genes to explain crazy cat ladies, why some people have no fingerprints, and why some people survive nuclear bombs. Genes illuminate everything from JFK's bronze skin (it wasn't a tan) to Einstein's genius, Kean explains. They also prove that Neanderthals and humans interbred a lot more recently than any of us would feel comfortable thinking, and they even allow some people, because of the exceptional flexibility of their thumbs and fingers, to become truly singular violinists.

"Kean is one of America's smartest and most charming science writers, and his new book could be perfect for summer readers who prefer some substance with their fun."—NPR